Very optimistic but again, anything can happen. This topic reminds on how many people were using this to pump Eth and shilling it by saying that it will never go below $1k again but it still happened. I will only believe that btc won't go below $6k or $10k once it reaches $50k or above and that is for sure.
You are right, you never can predict things like that for sure, but it's also not interesting being over-conservative here and setting some low thresholds like $1,000, the point is predict the price that is maximally close to the current price. For example, the greediest prediction you can make is the current price -$1, because in case Bitcoin will immediately skyrocket to new highs, that would be the best "never seen again" prediction, but it's obviously incredibly unlikely.
ETH was close to its ATH when people were saying it won't go below $1k, and doing this kind of prediction during a long bull market requires to actually be bearish and aim low, because the crash always comes, but we're only starting to grow, so now is the most interesting time for such predictions.